Exod. 8:3 And the river (of this growing Judaism) shall bring forth (the religious issue of the resurrection, of life after death, and foolishness of mummies), the (symbolic) frog, abundantly, (these Jews will question the Egyptology of four males are toads, Nun [primordial matter and primordial space]; Kuk [the illimitable and the boundless]; Huh [darkness and obscurity]; Amon [hidden and concealed ones]: Groliers Enc), which (religious matters) shall go up (everywhere among the people) and come into thine house (by the voice of thy children), and into thy bedchamber (from thy wife), and upon thy (marriage) bed (in pillow talk), and into the house of thy servants, and upon thy people (throughout the community), and into thine (kitchens as they toil at the) ovens, and into thy kneading troughs (of the bakery staff):

Exod. 8:9 And Moses said unto Pharaoh, (Akhenaten or Amenhotep IV, 1379-1362 BC), Glory over me: when shall I entreat for thee, and for thy servants, and for thy people, to destroy the frogs (of Egyptian religion) from thee and thy houses, that they may remain in the river (of Hebrew converts) only?

Plague 4] ...lice throughout all the land...

Exod. 8:16 And the LORD said unto Moses, Say unto Aaron, Stretch out thy rod, and smite the (very) dust of the land (of Egyptian worship), that it may become lice, (seen as the parasite it has historically been), throughout all the land of Egypt.

Exod. 8:18 And the magicians, (the respected academicians), did so with their enchantments to bring forth lice (out of the preachings of Moses), but they could not (for Moses had asked no tithes): so there were (parasite religious doctrines), lice, (preying) upon man, and (tithes to the priest hoods) upon (the sacrificed) beast.

Plague 5] ...swarms of flies...

Exod. 8:21 Else, if thou wilt not let my people go, behold, I will send swarms of flies upon thee, (pestering the people of Egypt with questions about Uranus), and upon thy servants, and upon thy people, and into thy houses, (door to door, awakening them our Hebrew God, Jehovah's witnesses to them): and the houses of the Egyptians shall be full of swarms of (Jehovah's witnesses), flies, and also the ground (in the public places of the communities) whereon they are.

Exod. 8:22 And I will sever in that day the land of Goshen, in which my people dwell, that no swarms (pestering the people) of flies shall be there; to the end thou mayest know that I am the LORD in the midst of the earth.

Exod. 8:23 And I will put a (religious) division between my people (of Judaism) and thy people (of Aten-Re): tomorrow shall this sign be, (Jehovah's witnesses, everywhere).

Exod. 8:29 And Moses said, Behold, I go out from thee, and I will entreat the LORD that the swarms of (proselytizing) flies may depart from Pharaoh, (Akhenaten or Amenhotep IV, 1379-1362 BC), from his servants, and from his people, tomorrow: but let not Pharaoh, (Akhenaten or Amenhotep IV, 1379-1362 BC), deal deceitfully any more in not letting the people go to sacrifice to the LORD.

(link to Exodus 9)

Flies (8:16 - 8:28)
The fifth plague of Egypt was Arov. Commentaries usually render this word as flies, but others as beasts, capable of harming people and livestock. The Bible emphasizes that the arov only came against Egypt, and that the Land of Goshen (where the Hebrews dwelt) was clean from it. Pharaoh asked Moses to remove this plague and promised to allow the Hebrews to worship God in the desert. However, after the plague was gone, Pharaoh "hardened his heart" and refused to keep his promise...